Showers and Thunderstorms With Heavy Rainfall Expected Across the Eastern United States

Showers and thunderstorms, some with local heavy rainfall, are expected across Pennsylvania and northward to New England. These storms will elevate the potential for flash flooding the rest of this weekend. Hot temperatures are expected across the Desert Southwest and Texas. Monsoonal thunderstorms are expected across New Mexico and Arizona. Read More >

Hazardous Weather Conditions

Current conditions at

Southern Illinois Airport (KMDH)

Lat: 37.78° N Lon: 89.25° W Elev: 400 ft.

Fog/Mist

70°F

21°C

Humidity 93%
Wind Speed Calm
Barometer 29.99 in (1015.0 mb)
Dewpoint 68°F (20°C)
Visibility 5.00 mi
Last update 31 Jul 4:52 am CDT
Detailed forecast for

Union County

Today
Partly sunny. Patchy fog in the morning. A 30 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 mph.
Tonight
Partly cloudy with a 30 percent chance of showers and thunderstorms. Lows in the lower 70s. South winds 5 mph.
Monday
Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the upper 80s. Southwest winds 5 mph. Highest heat index readings around 101.
Monday Night
Partly cloudy with a 20 percent chance of showers and thunderstorms. Lows in the lower 70s. South winds 5 mph.
Tuesday
Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the lower 90s. South winds 5 mph. Highest heat index readings around 102.
Tuesday Night
Mostly clear with a 20 percent chance of showers and thunderstorms. Lows in the mid 70s.
Wednesday
Partly sunny with a 20 percent chance of showers and thunderstorms. Highs in the lower 90s.
Wednesday Night
Mostly clear. Lows in the mid 70s.
Thursday
Partly sunny with a 30 percent chance of showers and thunderstorms. Highs in the lower 90s.
Thursday Night
Mostly clear. Lows in the mid 70s.
Friday
Partly sunny with a 40 percent chance of showers and thunderstorms. Highs in the lower 90s.
Friday Night
Partly cloudy with a 40 percent chance of showers and thunderstorms. Lows in the mid 70s.
Saturday
Partly sunny with a 30 percent chance of showers and thunderstorms. Highs in the upper 80s.



Click Map For Forecast
350 AM CDT SUN JUL 31 2016
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database